Ceruchus piceus
In 3 days ~10% in a week ~30%
Ceruchus piceus is a species of stag beetle in the family Lucanidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Red-Rot Decay Stag Beetle sighting in Shenandoah National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 630th most-seen of the 723 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Red-Rot Decay Stag Beetle in Shenandoah National Park on a given day, against under 5% in August to May, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Red-Rot Decay Stag Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Shenandoah National Park, in our data
Shenandoah National Park is the only park on Wallace's Line with enough records to rate Red-Rot Decay Stag Beetle sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Coleoptera
The closest relatives of the Red-Rot Decay Stag Beetle that you can see in Shenandoah National Park (order Coleoptera, Beetles) are Asian Lady Beetle (about 30%), Larger Elm Leaf Beetle (about 30%) and Seven-Spotted Lady Beetle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-Rot Decay Stag Beetle is recorded against all the insects logged in Shenandoah National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
